A Stable Wide-Range DC Amplifier
- 1 June 1954
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 25 (6) , 579-586
- https://doi.org/10.1063/1.1771136
Abstract
A versatile high‐gain dc amplifier for biological applications is described. Its features include differential push‐pull operation with a rejection ratio greater than 1000; response from zero to beyond 30 kc with a maximum gain of about 2.5×106; optional control of high‐ and low‐frequency cutoff (the dc gain can be reduced to 1 percent of the mid‐band gain). For applications requiring exceptional stability, an automatic rebalancing circuit is provided which resets the zero of the amplifier at intervals of about 5 seconds. The equipment is ac‐operated.Keywords
This publication has 2 references indexed in Scilit:
- An A.C. Operated D.C. Amplifier with Large Current OutputReview of Scientific Instruments, 1940
- Push-Pull Resistance Coupled AmplifiersReview of Scientific Instruments, 1937